uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/etesync/default.nix

@@ -0,0 +1,55 @@
+{ lib, buildPythonPackage, fetchPypi, isPy27,
+  appdirs, asn1crypto, cffi, cryptography, furl, idna, orderedmultidict,
+  packaging, peewee, py, pyasn1, pycparser, pyparsing, pyscrypt,
+  python-dateutil, pytz, requests, six, vobject,
+  pytest
+}:
+
+buildPythonPackage rec {
+  pname = "etesync";
+  version = "0.12.1";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "f20f7e9922ee789c4b71379676ebfe656b675913fe524f2ee722e1b9ef4e5197";
+  };
+
+  propagatedBuildInputs = [
+    appdirs
+    asn1crypto
+    cffi
+    cryptography
+    furl
+    idna
+    orderedmultidict
+    packaging
+    peewee
+    py
+    pyasn1
+    pycparser
+    pyparsing
+    pyscrypt
+    python-dateutil
+    pytz
+    requests
+    six
+    vobject
+  ];
+
+  checkInputs = [
+    pytest
+  ];
+
+  checkPhase = ''
+    pytest tests/test_collections.py
+    pytest tests/test_crypto.py
+  '';
+
+  meta = with lib; {
+    homepage = "https://www.etesync.com/";
+    description = "A python API to interact with an EteSync server.";
+    license = licenses.lgpl3;
+    maintainers = with maintainers; [ valodim ];
+  };
+}